cleanup - added whitespace around operators, some blank lines, fixed comment typos...

[wxWidgets.git] / include / wx / wxchar.h

diff --git a/include/wx/wxchar.h b/include/wx/wxchar.h
index 59d7a5e55b0d945c1b9c6e7d2033d330d8e06e50..026d9d612ca87486bcf64f04f4144948a67f7a17 100644 (file)
--- a/include/wx/wxchar.h
+++ b/include/wx/wxchar.h
@@ -5,7 +5,7 @@
  * Modified by: Vadim Zeitlin, Robert Roebling, Ron Lee
  * Created:     1998/06/12
  * RCS-ID:      $Id$
  * Modified by: Vadim Zeitlin, Robert Roebling, Ron Lee
  * Created:     1998/06/12
  * RCS-ID:      $Id$

- * Copyright:   (c) 1998-2002 wxWidgets dev team
+ * Copyright:   (c) 1998-2002 Joel Farley, Ove Kåven, Robert Roebling, Ron Lee

  * Licence:     wxWindows licence
  */
 
  * Licence:     wxWindows licence
  */
 


@@ -14,14 +14,12 @@
 #ifndef _WX_WXCHAR_H_
 #define _WX_WXCHAR_H_
 
 #ifndef _WX_WXCHAR_H_
 #define _WX_WXCHAR_H_
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma interface "wxchar.h"
-#endif
-
-#include "wx/defs.h"        /* for wxUSE_UNICODE */
+/* defs.h indirectly includes this file, so don't include it here */
+#include "wx/platform.h"
+#include "wx/dlimpexp.h"

 
 #if defined(HAVE_STRTOK_R) && defined(__DARWIN__) && defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS
 
 #if defined(HAVE_STRTOK_R) && defined(__DARWIN__) && defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS

-    char       *strtok_r(char *, const char *, char **);
+    char *strtok_r(char *, const char *, char **);

 #endif
 
 /* check whether we have wchar_t and which size it is if we do */
 #endif
 
 /* check whether we have wchar_t and which size it is if we do */


@@ -52,7 +50,7 @@
 /*
     Standard headers we need here.
 
 /*
     Standard headers we need here.
 

-    NB: don't include any wxWidgets headers here because almost of them include
+    NB: don't include any wxWidgets headers here because almost all of them include

         this one!
  */
 
         this one!
  */
 


@@ -61,7 +59,9 @@
 
 /* Almost all compiler have strdup(), but not quite all: CodeWarrior under Mac */
 /* and VC++ for Windows CE don't provide it */
 
 /* Almost all compiler have strdup(), but not quite all: CodeWarrior under Mac */
 /* and VC++ for Windows CE don't provide it */

-#if !(defined(__MWERKS__) && defined(__WXMAC__)) && !defined(__WXWINCE__)
+#if defined(__VISUALC__) && __VISUALC__ >= 1400
+    #define wxStrdupA _strdup
+#elif !(defined(__MWERKS__) && defined(__WXMAC__)) && !defined(__WXWINCE__)

     /* use #define, not inline wrapper, as it is tested with #ifndef below */
     #define wxStrdupA strdup
 #endif
     /* use #define, not inline wrapper, as it is tested with #ifndef below */
     #define wxStrdupA strdup
 #endif


@@ -127,7 +127,9 @@
     #define wxHAVE_TCHAR_SUPPORT
 #elif defined(__DMC__)
     #define wxHAVE_TCHAR_SUPPORT
     #define wxHAVE_TCHAR_SUPPORT
 #elif defined(__DMC__)
     #define wxHAVE_TCHAR_SUPPORT

-#elif defined(__MINGW32__) && wxCHECK_W32API_VERSION( 1, 0 ) && !defined(__WXPALMOS__)
+#elif defined(__WXPALMOS__)
+    #include <stddef.h>
+#elif defined(__MINGW32__) && wxCHECK_W32API_VERSION( 1, 0 )

     #define wxHAVE_TCHAR_SUPPORT
     #include <stddef.h>
     #include <string.h>
     #define wxHAVE_TCHAR_SUPPORT
     #include <stddef.h>
     #include <string.h>


@@ -143,9 +145,17 @@
     #define wxHAVE_TCHAR_SUPPORT
 #endif /* compilers with (good) TCHAR support */
 
     #define wxHAVE_TCHAR_SUPPORT
 #endif /* compilers with (good) TCHAR support */
 

-#ifdef __MWERKS__
-    #define HAVE_WPRINTF
-#endif
+#if defined(__MWERKS__)
+    /* Metrowerks only has wide char support for OS X >= 10.3 */
+    #if !defined(__DARWIN__) || \
+         (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3)
+        #define wxHAVE_MWERKS_UNICODE
+    #endif
+
+    #ifdef wxHAVE_MWERKS_UNICODE
+        #define HAVE_WPRINTF
+    #endif
+#endif /* __MWERKS__ */

 
 #ifdef wxHAVE_TCHAR_SUPPORT
     /* get TCHAR definition if we've got it */
 
 #ifdef wxHAVE_TCHAR_SUPPORT
     /* get TCHAR definition if we've got it */


@@ -178,6 +188,13 @@
     /*     char wchar_t is always unsigned) and (b) was how the previous */
     /*     definitions worked so keep it like this */
 
     /*     char wchar_t is always unsigned) and (b) was how the previous */
     /*     definitions worked so keep it like this */
 

+    /* Sun's SunPro compiler supports the wchar_t type and wide character */
+    /* functions, but does not define __WCHAR_TYPE__. Define it here to */
+    /* allow unicode enabled builds. */
+    #if defined(__SUNPRO_CC) || defined(__SUNPRO_C)
+    #define __WCHAR_TYPE__ wxchar_t
+    #endif
+

     /* GNU libc has __WCHAR_TYPE__ which requires special treatment, see */
     /* comment below */
     #if !defined(__WCHAR_TYPE__) || \
     /* GNU libc has __WCHAR_TYPE__ which requires special treatment, see */
     /* comment below */
     #if !defined(__WCHAR_TYPE__) || \


@@ -215,7 +232,8 @@
     #if !wxUSE_UNICODE
         #define _T(x) x
     #else /* Unicode */
     #if !wxUSE_UNICODE
         #define _T(x) x
     #else /* Unicode */

-        #define _T(x) L ## x
+        /* use wxCONCAT_HELPER so that x could be expanded if it's a macro */
+        #define _T(x) wxCONCAT_HELPER(L, x)

     #endif /* ASCII/Unicode */
 #endif /* !defined(_T) */
 
     #endif /* ASCII/Unicode */
 #endif /* !defined(_T) */
 


@@ -224,20 +242,20 @@
 /* and _() in wxWidgets sources */
 #define wxT(x)       _T(x)
 
 /* and _() in wxWidgets sources */
 #define wxT(x)       _T(x)
 

+/* a helper macro allowing to make another macro Unicode-friendly, see below */
+#define wxAPPLY_T(x) _T(x)
+

 /* Unicode-friendly __FILE__, __DATE__ and __TIME__ analogs */
 #ifndef __TFILE__
 /* Unicode-friendly __FILE__, __DATE__ and __TIME__ analogs */
 #ifndef __TFILE__

-    #define __XFILE__(x) wxT(x)
-    #define __TFILE__ __XFILE__(__FILE__)
+    #define __TFILE__ wxAPPLY_T(__FILE__)

 #endif
 
 #ifndef __TDATE__
 #endif
 
 #ifndef __TDATE__

-    #define __XDATE__(x) wxT(x)
-    #define __TDATE__ __XDATE__(__DATE__)
+    #define __TDATE__ wxAPPLY_T(__DATE__)

 #endif
 
 #ifndef __TTIME__
 #endif
 
 #ifndef __TTIME__

-    #define __XTIME__(x) wxT(x)
-    #define __TTIME__ __XTIME__(__TIME__)
+    #define __TTIME__ wxAPPLY_T(__TIME__)

 #endif
 
 /*
 #endif
 
 /*


@@ -362,7 +380,9 @@
         #define  wxRename    wxMSLU__trename
     #else
         #ifdef __WXWINCE__
         #define  wxRename    wxMSLU__trename
     #else
         #ifdef __WXWINCE__

-            #define  wxRemove    DeleteFile
+            /* carefully: wxRemove() must return 0 on success while DeleteFile()
+               returns 0 on error, so don't just define one as the other */
+            int wxRemove(const wxChar *path);

         #else
             #define  wxRemove    _tremove
             #define  wxRename    _trename
         #else
             #define  wxRemove    _tremove
             #define  wxRename    _trename


@@ -385,21 +405,54 @@
     /* time.h functions */
     #define  wxAsctime   _tasctime
     #define  wxCtime     _tctime
     /* time.h functions */
     #define  wxAsctime   _tasctime
     #define  wxCtime     _tctime

+
+    #define wxMbstowcs mbstowcs
+    #define wxWcstombs wcstombs

 #else /* !TCHAR-aware compilers */
 #else /* !TCHAR-aware compilers */

+    /*
+        There are 2 unrelated problems with these functions under Mac:
+            a) Metrowerks MSL CRT implements them strictly in C99 sense and
+               doesn't support (very common) extension of allowing to call
+               mbstowcs(NULL, ...) which makes it pretty useless as you can't
+               know the size of the needed buffer
+            b) OS X <= 10.2 declares and even defined these functions but
+               doesn't really implement them -- they always return an error
+
+        So use our own replacements in both cases.
+     */
+    #if defined(__MWERKS__) && defined(__MSL__)
+        #define wxNEED_WX_MBSTOWCS
+    #endif

 
 

-    #if !defined(__MWERKS__) && defined(__DARWIN__) && ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 )
+    #ifdef __DARWIN__
+        #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2
+            #define wxNEED_WX_MBSTOWCS
+        #endif
+    #endif
+
+    #ifdef wxNEED_WX_MBSTOWCS

         /* even though they are defined and "implemented", they are bad and just
            stubs so we need our own - we need these even in ANSI builds!! */
         /* even though they are defined and "implemented", they are bad and just
            stubs so we need our own - we need these even in ANSI builds!! */

-        #define mbstowcs wxInternalMbstowcs
-        #define wcstombs wxInternalWcstombs
-
-        WXDLLIMPEXP_BASE size_t wxInternalMbstowcs (wchar_t *, const char *, size_t);
-        WXDLLIMPEXP_BASE size_t wxInternalWcstombs (char *, const wchar_t *, size_t);
+        WXDLLIMPEXP_BASE size_t wxMbstowcs (wchar_t *, const char *, size_t);
+        WXDLLIMPEXP_BASE size_t wxWcstombs (char *, const wchar_t *, size_t);
+    #else
+        #define wxMbstowcs mbstowcs
+        #define wxWcstombs wcstombs

     #endif
 
     #endif
 

-    /* No UNICODE in the c library except wchar_t typedef on mac OSX 10.2 and less - roll our own */
-    #if !defined(__MWERKS__) && wxUSE_UNICODE && defined(__DARWIN__) && ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 )
-
+    /* 
+       The system C library on Mac OS X 10.2 and below does not support
+       unicode: in other words all wide-character functions such as towupper et
+       al. do simply not exist so we need to provide our own in that context,
+       except for the wchar_t definition/typedef itself.
+       
+       We need to do this for both project builder and CodeWarrior as
+       the latter uses the system C library in Mach builds for wide character
+       support, which as mentioned does not exist on 10.2 and below.
+    */
+    #if wxUSE_UNICODE && \
+        defined(__DARWIN__) && \
+            ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 )

         /* we need everything! */
         #define wxNEED_WX_STRING_H
         #define wxNEED_WX_CTYPE_H
         /* we need everything! */
         #define wxNEED_WX_STRING_H
         #define wxNEED_WX_CTYPE_H


@@ -774,7 +827,7 @@ WXDLLIMPEXP_BASE bool wxOKlibc(); /* for internal use */
 /* printf() family saga */
 
 /*
 /* printf() family saga */
 
 /*

-   For some systems vsnprintf() exists in the system libraries but not in the
+   For some systems [v]snprintf() exists in the system libraries but not in the

    headers, so we need to declare it ourselves to be able to use it.
  */
 #if defined(HAVE_VSNPRINTF) && !defined(HAVE_VSNPRINTF_DECL)
    headers, so we need to declare it ourselves to be able to use it.
  */
 #if defined(HAVE_VSNPRINTF) && !defined(HAVE_VSNPRINTF_DECL)


@@ -786,6 +839,25 @@ WXDLLIMPEXP_BASE bool wxOKlibc(); /* for internal use */
     int vsnprintf(char *str, size_t size, const char *format, va_list ap);
 #endif /* !HAVE_VSNPRINTF_DECL */
 
     int vsnprintf(char *str, size_t size, const char *format, va_list ap);
 #endif /* !HAVE_VSNPRINTF_DECL */
 

+#if defined(HAVE_SNPRINTF) && !defined(HAVE_SNPRINTF_DECL)
+#ifdef __cplusplus
+    extern "C"
+#else
+    extern
+#endif
+    int snprintf(char *str, size_t size, const char *format, ...);
+#endif /* !HAVE_SNPRINTF_DECL */
+
+/* Wrapper for vsnprintf if it's 3rd parameter is non-const. Note: the
+ * same isn't done for snprintf below, the builtin wxSnprintf_ is used
+ * instead since it's already a simple wrapper */
+#if defined __cplusplus && defined HAVE_BROKEN_VSNPRINTF_DECL
+    inline int wx_fixed_vsnprintf(char *str, size_t size, const char *format, va_list ap)
+    {
+        return vsnprintf(str, size, (char*)format, ap);
+    }
+#endif
+

 /*
    First of all, we always want to define safe snprintf() function to be used
    instead of sprintf(). Some compilers already have it (or rather vsnprintf()
 /*
    First of all, we always want to define safe snprintf() function to be used
    instead of sprintf(). Some compilers already have it (or rather vsnprintf()


@@ -797,27 +869,35 @@ WXDLLIMPEXP_BASE bool wxOKlibc(); /* for internal use */
  */
 #ifndef wxVsnprintf_
     #if wxUSE_UNICODE
  */
 #ifndef wxVsnprintf_
     #if wxUSE_UNICODE

-        #if defined(__MWERKS__)
+        #ifdef wxHAVE_MWERKS_UNICODE

             #define HAVE_WCSRTOMBS 1
             #define HAVE_VSWPRINTF 1
             #define HAVE_WCSRTOMBS 1
             #define HAVE_VSWPRINTF 1

-        #endif
+        #endif /* Metrowerks with Unicode support */

         #if defined(__WATCOMC__)
             #define wxVsnprintf_    _vsnwprintf
             #define wxSnprintf_     _snwprintf
         #if defined(__WATCOMC__)
             #define wxVsnprintf_    _vsnwprintf
             #define wxSnprintf_     _snwprintf

-        #endif
+        #endif /* Watcom */

         #if defined(HAVE__VSNWPRINTF)
             #define wxVsnprintf_    _vsnwprintf
         /* MinGW?MSVCRT has the wrong vswprintf */
         #if defined(HAVE__VSNWPRINTF)
             #define wxVsnprintf_    _vsnwprintf
         /* MinGW?MSVCRT has the wrong vswprintf */

-        #elif defined(HAVE_VSWPRINTF) && !defined(__MINGW32__)
+               /* Mac OS X has a somehow buggy vswprintf */
+        #elif defined(HAVE_VSWPRINTF) && !defined(__MINGW32__) && !defined(__DARWIN__)

             #define wxVsnprintf_    vswprintf
         #endif
     #else /* ASCII */
         /* all versions of CodeWarrior supported by wxWidgets apparently have */
             #define wxVsnprintf_    vswprintf
         #endif
     #else /* ASCII */
         /* all versions of CodeWarrior supported by wxWidgets apparently have */

-        /* vsnprintf() */
+        /* both snprintf() and vsnprintf() */
+        #if defined(HAVE_SNPRINTF) || defined(__MWERKS__) || defined(__WATCOMC__)
+            #ifndef HAVE_BROKEN_SNPRINTF_DECL
+                #define wxSnprintf_     snprintf
+            #endif
+        #endif

         #if defined(HAVE_VSNPRINTF) || defined(__MWERKS__) || defined(__WATCOMC__)
         #if defined(HAVE_VSNPRINTF) || defined(__MWERKS__) || defined(__WATCOMC__)

-            /* assume we have snprintf() too if we have vsnprintf() */
-            #define wxVsnprintf_    vsnprintf
-            #define wxSnprintf_     snprintf
+            #if defined __cplusplus && defined HAVE_BROKEN_VSNPRINTF_DECL
+                #define wxVsnprintf_    wx_fixed_vsnprintf
+            #else
+                #define wxVsnprintf_    vsnprintf
+            #endif

         #endif
     #endif
 #endif /* wxVsnprintf_ not defined yet */
         #endif
     #endif
 #endif /* wxVsnprintf_ not defined yet */


@@ -1177,13 +1257,13 @@ WXDLLIMPEXP_BASE void *calloc( size_t num, size_t size );
             return szRet;
         }
 
             return szRet;
         }
 

-    #else //!wxUSE_UNICODE
+    #else /* !wxUSE_UNICODE */

     #   define wxTmemchr memchr
     #   define wxTmemcmp memcmp
     #   define wxTmemcpy memcpy
     #   define wxTmemmove memmove
     #   define wxTmemset memset
     #   define wxTmemchr memchr
     #   define wxTmemcmp memcmp
     #   define wxTmemcpy memcpy
     #   define wxTmemmove memmove
     #   define wxTmemset memset

-    #endif
+    #endif /* wxUSE_UNICODE/!wxUSE_UNICODE */

 
 #endif /*__cplusplus*/
 
 
 #endif /*__cplusplus*/